99520153 has 4 divisors (see below), whose sum is σ = 100095588. Its totient is φ = 98944720.

The previous prime is 99520147. The next prime is 99520207. The reversal of 99520153 is 35102599.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40106889 + 59413264 = 6333^2 + 7708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99520153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99520123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287458 + ... + 287803.

It is an arithmetic number, because the mean of its divisors is an integer number (25023897).

Almost surely, 2^99520153 is an apocalyptic number.

It is an amenable number.

99520153 is a deficient number, since it is larger than the sum of its proper divisors (575435).

99520153 is a wasteful number, since it uses less digits than its factorization.

99520153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575434.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 99520153 is about 9975.9787990954. The cubic root of 99520153 is about 463.4152752038.

The spelling of 99520153 in words is "ninety-nine million, five hundred twenty thousand, one hundred fifty-three".